DE102005032341B3 - Sleeve for attaching charge air hose to internal combustion engine nozzle, has circular part of external side coming into contact with internal side of nozzle such that internal pressure presses sleeve against nozzle - Google Patents
Sleeve for attaching charge air hose to internal combustion engine nozzle, has circular part of external side coming into contact with internal side of nozzle such that internal pressure presses sleeve against nozzle Download PDFInfo
- Publication number
- DE102005032341B3 DE102005032341B3 DE200510032341 DE102005032341A DE102005032341B3 DE 102005032341 B3 DE102005032341 B3 DE 102005032341B3 DE 200510032341 DE200510032341 DE 200510032341 DE 102005032341 A DE102005032341 A DE 102005032341A DE 102005032341 B3 DE102005032341 B3 DE 102005032341B3
- Authority
- DE
- Germany
- Prior art keywords
- sleeve
- nozzle
- charge air
- air hose
- internal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 title description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000012858 resilient material Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 210000002414 leg Anatomy 0.000 description 12
- 239000011324 bead Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
- F16L37/025—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an inner elastic part pressed against an outer part by reason of its elasticity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10137—Flexible ducts, e.g. bellows or hoses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10144—Connections of intake ducts to each other or to another device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1277—Reinforcement of walls, e.g. with ribs or laminates; Walls having air gaps or additional sound damping layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses
- F16L33/16—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses with sealing or securing means using fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
- F16L37/04—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an elastic outer part pressing against an inner part by reason of its elasticity
- F16L37/06—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an elastic outer part pressing against an inner part by reason of its elasticity tightened by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/10157—Supercharged engines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Muffe eines Ladeluftschlauches gemäß dem Oberbegriff des Anspruches 1.The The present invention relates to a sleeve of a charge air hose according to the preamble of Claim 1.
Ladeluftschläuche werden beispielsweise bei mit einem Turbolader versehenen Verbrennungsmotoren eingesetzt, wobei der Ladeluftschlauch die vom Turbolader komprimierte Ladeluft in einen Ladeluftkühler führt und/oder zum Motoreintritt leitet. Dabei hat es sich bewährt, den Ladeluftschlauch im heißen Bereich vor dem Ladeluftkühler aus einem Verbund-Silikon-Elastomer herzustellen, während der Ladeluftschlauch zwischen Ladeluftkühler und Motoreintritt aufgrund der dort niedrigeren Temperaturen aus einem CR (Chloroprene-Elastomer) gebildet sein kann. Die aus dem Stand der Technik bekannten Ladeluftschläuche werden üblicherweise auf entsprechende Stutzen am Turbolader, am Ladeluftkühler und/oder am Motor derart aufgeschoben, dass der Stutzen im Inneren des Ladeluftschlauches aufgenommen wird, bevor der Ladeluftschlauch mittels einer verschraubbaren Schelle fest und druckdicht am Stutzen montiert wird. Bei Ladeluftdrücken bis etwa 2 1/2 Bar hat sich diese Methode als die Wirtschaftlichste durchgesetzt.Be charged air hoses For example, provided with a turbocharger internal combustion engines used, with the charge air hose from the turbocharger compressed Charge air in a charge air cooler leads and / or leads to the engine entrance. It has proven itself, the charge air hose in be called Area in front of the intercooler made of a composite silicone elastomer, while the charge air hose between intercooler and engine entry due to the lower temperatures there a CR (chloroprene elastomer) may be formed. The from the Charge air hoses known from the prior art are customary to corresponding nozzles on the turbocharger, the intercooler and / or pushed on the engine so that the nozzle inside the charge air hose is taken before the charge air hose by means of a screwed Clamp is firmly and pressure-tight mounted on the nozzle. For charge air pressures up to About 2 1/2 bar has made this method the most economical enforced.
Moderne Turbolader arbeiten allerdings bei einem sehr viel höheren Druck von bis zu 4 Bar. Dabei hat sich herausgestellt, dass die üblicherweise benutzte Schlauchschelle nicht in der Lage ist, diesem Druck Stand zu halten mit der Folge, dass die wertvolle, aufgeladene Ladeluft teilweise unkontrolliert entweichen kann. Neben einem Leistungsverlust des Motors kann dies auch zu Beschädigungen einzelner Bauteile des Motors und zu Verunreinigungen des Motorraumes mit Öl und Abgasteilen aus der Ladeluft führen.modern Turbochargers, however, operate at a much higher pressure up to 4 bar. It has been found that the commonly used Hose clamp is unable to withstand this pressure with the result that the valuable, charged charge air partially can escape uncontrollably. In addition to a loss of performance of the Motors can also damage this individual components of the engine and to contamination of the engine compartment with oil and exhaust parts from the charge air lead.
Der Erfindung liegt die Aufgabe zu Grunde, eine Muffe der eingangs genannten Art zu schaffen, die den Ladeluftschlauch auch bei Drücken bis 4 Bar und mehr zuverlässig und druckdicht am Stutzen hält und die in einfacher Weise am Stutzen anbringbar ist.Of the Invention is based on the object, a sleeve of the aforementioned Way to create the charge air hose even when pressing up 4 bar and more reliable and pressure-tight on the neck holds and which can be attached in a simple manner to the neck.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass an einer Innenseite der Muffe eine im wesentlichen im Querschnitt L-förmige Haltemanschette aus einem steifen Material, vorzugsweise Metall, vorgesehen ist, die mit ihrem Axialschenkel an der Muffe anliegt und die mit ihrem Radialschenkel am Ladeluftschlauch anliegt.The The object is achieved in that on an inside of the sleeve a substantially in cross section L-shaped Retaining sleeve made of a stiff material, preferably metal, is provided, which rests with its axial leg on the sleeve and which rests with its radial leg on the charge air hose.
Eine nach dem Einsteckprinzip ausgebildete Muffe hat den Vorteil, dass die Muffe mit dem Ladeluftschlauch nicht von außen auf den Stutzen aufgesteckt, sondern von innen in den Stutzen eingesteckt wird, wobei die Muffe so dimensioniert ist, dass sie zumindest mit einem Teil ihrer Außenseite an einer Innenwand des Stutzens zur Anlage kommt. Dies hat den Vorteil, dass der im Inneren durch die Ladeluft erzeugte Überdruck die Muffe gegen den Stutzen drückt, so dass mit einer Druckerhöhung auch eine bessere Abdichtung einhergeht. Folglich ist ein derart ausgebildeter Ladeluftschlauch in der Lage, auch bei hohen Drücken stets eine Luft- und druckdichte Verbindung zu einzugehen.A formed according to the insertion principle sleeve has the advantage that the sleeve with the charge air hose is not attached to the neck from outside, but is inserted from the inside into the socket, with the sleeve is dimensioned so that it at least with part of its outside comes to an inner wall of the nozzle to the plant. This has the advantage that the pressure generated inside by the charge air the sleeve against the Presses neck, so that with a pressure increase also a better seal goes along. Consequently, such a trained Charge air hose able, even at high pressures always an air and pressure-tight To enter a connection.
Zur Anbringung der Muffe am Stutzen braucht diese lediglich über ihren Umfang gesehen zusammengedrückt und dann in das Innere des Stutzens eingeführt zu werden. Die Memoryeigenschaft des federelastischen Materials bewirkt dann, dass die Muffe wieder in ihre ursprüngliche Gestalt zurück gelangt und so passgenau im Stutzen sitzt. Dies hat den Vorteil, dass die Muffe durch Muskelkraft zusammengedrückt werden kann und so einfach und schnell montiert werden kann. Ein weiterer Vorteil besteht darin, dass das mühsame Verschrauben der bisher verwendeten Ladeluftschellen entfällt, so dass die Montagezeiten dieses Ladeluftschlauches deutlich verkürzt werden können.to Attaching the sleeve on the neck needs these only about their Scope compressed seen and then be introduced into the interior of the neck. The memory property of spring-elastic material then causes the sleeve back in their original one Shape comes back and so fits perfectly in the socket. This has the advantage that the Muff can be squeezed by muscle power and so easy and can be mounted quickly. Another advantage is that the tedious Screwing the previously used charge air clamps deleted, so that the installation times of this charge air hose are significantly shortened can.
Das
Prinzip, die Muffe eines Schlauches zur Anschlußverbindung von innen in einen
Stutzen zu stecken, ist an sich aus dem Gebiet der wasserführenden
Rohr- bzw. Schlauchleitungen bekannt. Aus der
Erfindungsgemäß ist an einer Innenseite der Muffe eine im wesentlichen im Querschnitt L-förmige Haltemanschette aus einem steifen Material, vorzugsweise aus Metall, vorgesehen, die mit ihrem Axialschenkel an der Muffe anliegt und die mit ihrem Radialschenkel am Ladeluftschlauch anliegt. Dies hat den Vorteil, dass die Manschette den Ladeluftschlauch gegen die Muffe verspannt und so beide in der gewünschten Position fixiert. Gleichzeitig ist die Manschette zusammen mit der Muffe und dem Ladeluftschlauch in einfacher Weise zu montieren. Noch ein Vorteil liegt darin, dass die Haltemanschette auch radial auf die Muffe drückt, um die Muffe gegen die Innenwand des Stutzens zu drücken. Verstärkt wird dieser Effekt, sobald der Arbeitsdruck anliegt.According to the invention a substantially cross-sectionally L-shaped retaining sleeve made of a rigid material, preferably of metal, is provided on an inner side of the sleeve, which rests with its axial leg on the sleeve and which rests with its radial leg on the charge air hose. This has the advantage that the cuff braces the charge air hose against the sleeve and so fix both in the desired position. At the same time the cuff is easy to install together with the sleeve and the charge air hose. Yet one advantage is that the retaining sleeve also presses radially on the sleeve to press the sleeve against the inner wall of the nozzle. This effect is reinforced as soon as the working pressure is applied.
Dabei hat es sich als vorteilhaft erwiesen, an der Manschette Rastmittel vorzusehen, die formschlüssig in Rastmittel an der Muffe eingreifen, um die Manschette zusammen mit der Muffe und dem Ladeluftschlauch im Stutzen halten.there it has proven to be advantageous to latch on the sleeve to provide the form-fitting engage in locking means on the sleeve to put the cuff together with the sleeve and the charge air hose in the nozzle.
Anhand der Zeichnung wird ein Ausführungsbeispiel der Erfindung näher erläutert. Es zeigtBased The drawing is an embodiment closer to the invention explained. It shows
Der
in
Auf
der Innenseite
Zur
Montage wird nun die Haltemanschette
- 400400
- LadeluftschlauchCharge air hose
- 402402
- Muffesleeve
- 404404
- StutzenSupport
- 406406
- Außenseite der Muffeoutside the sleeve
- 410410
- Absatzparagraph
- 412412
- Stirnflächeface
- 414414
- Schlitzslot
- 424424
- Innenseite der Muffeinside the sleeve
- 434434
- Wulstbead
- 436436
- Nutgroove
- 438438
- Dichtlippesealing lip
- 440440
- Hohlraumcavity
- 442442
- Freiraumfree space
- 444444
- Haltemanschetteretaining sleeve
- 446446
- Axialschenkelaxial leg
- 448448
- Radialschenkelradial leg
- 450450
- Faltewrinkle
- 452452
- konkave Welleconcave wave
- 454454
- konvexe Welleconvex wave
- 456456
- Vorsprunghead Start
- 458458
- Vertiefungdeepening
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510032341 DE102005032341B3 (en) | 2005-07-08 | 2005-07-08 | Sleeve for attaching charge air hose to internal combustion engine nozzle, has circular part of external side coming into contact with internal side of nozzle such that internal pressure presses sleeve against nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510032341 DE102005032341B3 (en) | 2005-07-08 | 2005-07-08 | Sleeve for attaching charge air hose to internal combustion engine nozzle, has circular part of external side coming into contact with internal side of nozzle such that internal pressure presses sleeve against nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102005032341B3 true DE102005032341B3 (en) | 2007-02-15 |
Family
ID=37681318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200510032341 Expired - Fee Related DE102005032341B3 (en) | 2005-07-08 | 2005-07-08 | Sleeve for attaching charge air hose to internal combustion engine nozzle, has circular part of external side coming into contact with internal side of nozzle such that internal pressure presses sleeve against nozzle |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102005032341B3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007031614A1 (en) | 2007-07-06 | 2009-01-08 | Daimler Ag | Charge air hose |
| FR2941764A1 (en) * | 2009-02-05 | 2010-08-06 | Aldes Aeraulique | Device for connecting ventilating case to coupler/end of duct of ventilating installation in building, has rigid collar engaged in inner space of seal and with diameter corresponding to that of sleeve, where seal is fixed on end of sleeve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2366067A (en) * | 1943-06-04 | 1944-12-26 | Smith Franklin Elijah | Hose coupling |
| GB852681A (en) * | 1957-08-22 | 1960-10-26 | George Wynn Gibling | Pipe connectors |
| FR1247652A (en) * | 1959-09-23 | 1960-12-02 | Cooper Tire & Rubber Co | Flexible tube |
| DE1863427U (en) * | 1962-09-26 | 1962-12-06 | Ernstalbert Vosdellen | SOFTENED PLASTIC OR PLASTIC HOSE OD. DGL. WITH INSERTED ENDS. |
| AT267977B (en) * | 1964-04-08 | 1969-01-27 | Glaenzer Spicer Sa | Detachable connection between a flexible and a rigid molded body |
| US3873137A (en) * | 1973-09-19 | 1975-03-25 | Seiichi Yamaguchi | Bellows-type joint assembly |
| EP0061569A1 (en) * | 1981-03-27 | 1982-10-06 | WOCO Franz-Josef Wolf & Co. | Socket end |
| EP0856696A2 (en) * | 1997-01-29 | 1998-08-05 | ContiTech Schlauch GmbH | Hose connection to an intercooler apparatus |
-
2005
- 2005-07-08 DE DE200510032341 patent/DE102005032341B3/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2366067A (en) * | 1943-06-04 | 1944-12-26 | Smith Franklin Elijah | Hose coupling |
| GB852681A (en) * | 1957-08-22 | 1960-10-26 | George Wynn Gibling | Pipe connectors |
| FR1247652A (en) * | 1959-09-23 | 1960-12-02 | Cooper Tire & Rubber Co | Flexible tube |
| DE1863427U (en) * | 1962-09-26 | 1962-12-06 | Ernstalbert Vosdellen | SOFTENED PLASTIC OR PLASTIC HOSE OD. DGL. WITH INSERTED ENDS. |
| AT267977B (en) * | 1964-04-08 | 1969-01-27 | Glaenzer Spicer Sa | Detachable connection between a flexible and a rigid molded body |
| US3873137A (en) * | 1973-09-19 | 1975-03-25 | Seiichi Yamaguchi | Bellows-type joint assembly |
| EP0061569A1 (en) * | 1981-03-27 | 1982-10-06 | WOCO Franz-Josef Wolf & Co. | Socket end |
| EP0856696A2 (en) * | 1997-01-29 | 1998-08-05 | ContiTech Schlauch GmbH | Hose connection to an intercooler apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007031614A1 (en) | 2007-07-06 | 2009-01-08 | Daimler Ag | Charge air hose |
| WO2009007165A1 (en) * | 2007-07-06 | 2009-01-15 | Contitech Mgw Gmbh | Charge-air hose |
| US8267435B2 (en) | 2007-07-06 | 2012-09-18 | Contitech Mgw Gmbh | Charge-air hose assembly |
| FR2941764A1 (en) * | 2009-02-05 | 2010-08-06 | Aldes Aeraulique | Device for connecting ventilating case to coupler/end of duct of ventilating installation in building, has rigid collar engaged in inner space of seal and with diameter corresponding to that of sleeve, where seal is fixed on end of sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8100 | Publication of the examined application without publication of unexamined application | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: CONTITECH MGW GMBH, 34346 HANN. MUENDEN, DE |
|
| 8339 | Ceased/non-payment of the annual fee | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110201 |